Answer:
D∪∪
Step-by-step explanation:
x²+x-72=0
x²+9x-8x-72=0
x(x+9)-8(x+9)=0
(x+9)(x-8)=0
x=-9,8
Answer:
Step-by-step explanation:
2a^-a-13=2
Subtract 2 from both sides :
2a^2-a-13=2=2-2
2a^2-a-15=0
Factor left side of the equation :
(2a+5) (a-3)=0
Set factors equal to 0 :
2a+5=0 or a-3=0
a=-5/2 or a=3
Answer:
it is quadratic
Step-by-step explanation:
a quadratic graph should look like this
MARK BRAINIEST IF IT HELPS
Answer:
Step-by-step explanation:
(6-2i)(2-3i)=
we will use foil to multiply
-12-18i-4i+6(i^2)=
now remeber that (i^2)=-1
=12-22i-6=<u>6-22i</u>